Results 211 to 220 of about 10,032 (253)

Investigating dynamic causal network with unified Granger causality analysis

Journal of Neuroscience Methods, 2023
Dynamic coupling phenomena characterize a widespread fundamental mechanism for the functional brain, which involves large-scale interactions at a multi-level. The Granger causality analysis (GCA) provides a data-driven procedure to investigate causal connections and has the potential to be a powerful dynamic capturing tool.In this paper, distinct from ...
Fei, Li   +6 more
openaire   +2 more sources

The Granger causality analysis of stocks based on clustering

Cluster Computing, 2018
In the research of the relationship between stocks, people tend to focus more on using the domestic or foreign indices to study the inter-national, inter-regional and inter-industry relations, but few people analyze and tap the connection between individual stocks directly.
Siyu Bai, Wei Cui, Long Zhang
openaire   +1 more source

Granger Causality—Statistical Analysis Under a Configural Perspective

Integrative Psychological and Behavioral Science, 2013
The concept of Granger causality can be used to examine putative causal relations between two series of scores. Based on regression models, it is asked whether one series can be considered the cause for the second series. In this article, we propose extending the pool of methods available for testing hypotheses that are compatible with Granger ...
Von Eye, Alexander   +2 more
openaire   +3 more sources

Comparison Analysis: Granger Causality and New Causality and Their Applications to Motor Imagery

IEEE Transactions on Neural Networks and Learning Systems, 2016
In this paper we first point out a fatal drawback that the widely used Granger causality (GC) needs to estimate the autoregressive model, which is equivalent to taking a series of backward recursive operations which are infeasible in many irreversible chemical reaction models. Thus, new causality (NC) proposed by Hu et al. (2011) is theoretically shown
Sanqing Hu   +5 more
openaire   +2 more sources

The extended Granger causality analysis for Hodgkin–Huxley neuronal models

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2020
How to extract directions of information flow in dynamical systems based on empirical data remains a key challenge. The Granger causality (GC) analysis has been identified as a powerful method to achieve this capability. However, the framework of the GC theory requires that the dynamics of the investigated system can be statistically linearized; i.e ...
Hong Cheng, David Cai, Douglas Zhou
openaire   +2 more sources

Telecommunications and Economic Activity: An Analysis of Granger Causality

Journal of Management Information Systems, 2001
The pervasive role of telecommunications in contemporary commerce is well documented, and has dramatically increased the demand for services. Across the world, countries are seeking to improve telecommunications infrastructure and benefit from anticipated increases in economic activity, and a causal relation between the two is often tacitly assumed ...
openaire   +1 more source

A MATLAB toolbox for Granger causal connectivity analysis

Journal of Neuroscience Methods, 2010
Assessing directed functional connectivity from time series data is a key challenge in neuroscience. One approach to this problem leverages a combination of Granger causality analysis and network theory. This article describes a freely available MATLAB toolbox--'Granger causal connectivity analysis' (GCCA)--which provides a core set of methods for ...
openaire   +2 more sources

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